isprint, iswprint, _isprint_l, _iswprint_l
Determines whether an integer represents a printable character.
int isprint( int c ); int iswprint( wint_t c ); int _isprint_l( int c, _locale_t locale ); int _iswprint_l( wint_t c, _locale_t locale );
Each of these routines returns nonzero if c is a particular representation of a printable character. isprint returns a nonzero value if c is a printable character—this includes the space character (0x20 – 0x7E). iswprint returns a nonzero value if c is a printable wide character—this includes the space wide character. Each of these routines returns 0 if c does not satisfy the test condition.
The result of the test condition for these functions depends on the LC_CTYPE category setting of the locale; see setlocale, _wsetlocale for more information. The versions of these functions that do not have the _l suffix use the current locale for any locale-dependent behavior; the versions that do have the _l suffix are identical except that they use the locale that's passed in instead. For more information, see Locale.
The behavior of isprint and _isprint_l is undefined if c is not EOF or in the range 0 through 0xFF, inclusive. When a debug CRT library is used and c is not one of these values, the functions raise an assertion.
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TCHAR.H routine |
_UNICODE & _MBCS not defined |
_MBCS defined |
_unicode defined |
|---|---|---|---|
|
_ istprint |
isprint |
iswprint |
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Routine |
Required header |
|---|---|
|
isprint |
<ctype.h> |
|
iswprint |
<ctype.h> or <wchar.h> |
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_isprint_l |
<ctype.h> |
|
_iswprint_l |
<ctype.h> or <wchar.h> |
For additional compatibility information, see Compatibility.
Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
